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Allow add of raidz and mirror with same redundancy

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Allow new members to be added to a pool mixing raidz and mirror vdevs
without giving -f, as long as they have matching redundancy.  This case
was missed in #5915, which only handled zpool create.

Add zfstest zpool_add_010_pos.ksh, with test of zpool create
followed by zpool add of mixed raidz and mirror vdevs.

Add some more mixed raidz and mirror cases to zpool_create_006_pos.ksh.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Haakan Johansson <f96hajo@chalmers.se>
Issue #5915 
Closes #6181
This commit is contained in:
Håkan Johansson
2017-06-05 22:53:09 +02:00
committed by Brian Behlendorf
parent 9f7b066bd9
commit 6eb6073a04
5 changed files with 192 additions and 4 deletions
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cmd/zpool/zpool_vdev.c
+16 -1
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@@ -1053,6 +1053,7 @@ check_replication(nvlist_t *config, nvlist_t *newroot)
nvlist_t **child;
uint_t children;
replication_level_t *current = NULL, *new;
replication_level_t *raidz, *mirror;
int ret;
/*
@@ -1100,7 +1101,21 @@ check_replication(nvlist_t *config, nvlist_t *newroot)
*/
ret = 0;
if (current != NULL) {
if (strcmp(current->zprl_type, new->zprl_type) != 0) {
if (is_raidz_mirror(current, new, &raidz, &mirror) ||
is_raidz_mirror(new, current, &raidz, &mirror)) {
if (raidz->zprl_parity != mirror->zprl_children - 1) {
vdev_error(gettext(
"mismatched replication level: pool and "
"new vdev with different redundancy, %s "
"and %s vdevs, %llu vs. %llu (%llu-way)\n"),
raidz->zprl_type,
mirror->zprl_type,
raidz->zprl_parity,
mirror->zprl_children - 1,
mirror->zprl_children);
ret = -1;
}
} else if (strcmp(current->zprl_type, new->zprl_type) != 0) {
vdev_error(gettext(
"mismatched replication level: pool uses %s "
"and new vdev is %s\n"),